Design of canted synthetic pattern exchange spin valve head...

Details Design of canted synthetic pattern exchange spin valve head... Design of canted synthetic pattern exchange spin valve head...

2005-09-13

2005-09-13

Cao, Allen (Department: 2652)

Dynamic magnetic information storage or retrieval

Head

Magnetoresistive reproducing head

C029S603140

Reexamination Certificate

active

06943994

ABSTRACT:
A GMR sensor comprising a sensor element having a spin valve configuration with a synthetic antiferromagnetic pinned layer and further comprising a ferromagnetic free layer biased by synthetic exchange biasing in a direction canted relative to the air bearing surface plane of the sensor. The resulting GMR sensor has a stable free layer domain structure, stable bias point and a wide dynamic range.

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HT-01-036/038, U.S. Appl. No. 10/104,802, filed Mar. 22, 2002, assigned to the same assignee, “Transverse or Longitudinal Patterned Synthetic Exchange Biasing for Stabilizing GMR Sensors”.
HT-01-032, U.S. Appl. No. 10/091,959, filed Mar. 6, 2002, assigned to the same assignee, “Easily Manufactured Exchange Bias Stabilization Scheme”.
HT-01-037, U.S. Appl. No. 10/077,064, filed Feb. 15, 2002, assigned to the same assignee, “Synthetic Pattern Exchange Configuration for Side Reading Reduction”.

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